Since I only have a small boat with an electric motor, I was concidering an Eagle Fisheasy 2 that has 187 watts, 1500 P/P watts, and a 20 degree cone angle... or an Eagle Cuda 168 with 100 watts, 800 P/P watts, and a 60 degree cone angle. Neither one of which are pricey units, but will probably fit the bill. My thoughts are if I'm in shallow water, do I need 700 extra watts of P/P power? The other thought is without the extra power, and a much wider field of view, would it be the way to go to see more bottom, or will the lower power be a sacrafice and it wouldn't be a good thing?